Combines 6620 vs F2 T langan

[T__langan]

We had an F3 back in the mid 80's. As I've stated before, it had the wide rasp cylinder bars in it which gave it somewhat of an edge over the standard bars. We were running in high moisture corn, I'd guess around 130 bu_acre at the time with 4-38" heads. It was pretty much a dead heat, period. Everything else on the machine was factory stock, including the hp. Do I have pictures or a videoIJ No. But I would have no problem putting any good F3 in the same field as a 6620 with same sized heads again. One thing is for sure, an M3 is a beast compared to the 6620 and they are supposed to be in the same class. I'm not the only one who has made this claim either - there have been others who have found the same results in a side-by-side comparision. I know you Deere fellers kinda get your feelings hurt when we talk about these kinds of things, but that F2_F3 was one helluva mean little combine for it's size. All the measurements say it shouldn't be able to run with a larger 6620, but they do. Of all the Gleaners we've owned (9 so far over the years),that F3 was our favorite and that's saying a lot because we REAllY like our R52! There wasn't a mudhole that existed that we couldn't cut right through, it had great capacity, good power, and very fuel efficient. Overall, one of the best ones ever made.

 

[Dairyman]

Tom's not alone on this. We had a 1976 FKS and could harvest just as many bushels of corn per hour as our neighbor's 6620 sidehill. Both of us were running 4-38" heads.

 

[John]

I will back Tom 1000%, I owned an F with a 4-38 and a very good friend had a 6600 JD and we worked together quite often in the same fields and my F diesel out worked his 6600, he traded up to a 6620 and was finally able to keep up to my lowly F. I then traded to an M2 and started chewing the tails off of the 7720's in the neighborhood. A 6600_6620 barely handles a 6-30 head as does an F series and each series was built for larger capacity(FACT)so by the F3 a 6-30 would probably run along side a 6620_6-30.The M series which Deere keeps saying is the same as the 6600_6620 series easily handles a 6-30 head and most M2_3 are carrying 6-30 heads and running much easier than the 66's are (FACT). The only place where I had a problem with the 6-30 on my M2 was 200+ bu corn on 15 degree grade sidehill. And if you look at the Spec. sheet for the 4400 series JD a 6-30 is not available and the F series Gleaner it is(FACT). So get your FACTS and I have mine from working side by side with the F and M2 vs 6600_6620 and the 7720's, my repair parts came right from the AC_DA_Agco dealer, no hotshot parts. And keep one thing in mind on capacity l Series = 7700+ JD, M series = 7700- JD, F series = 6600 JD, the 8800 JD was just larger than the l3 and not really built for the 12-30 head, much better suited for the 8-30 but Deere was trying to keep up with the Rotary revolution and stay conventional, I worked the 1980 Farm Progress Show in Nevada, IA and got to see first hand all of the 8800_12-30 problems vs the N6_12-30 (the 88 is not a bad machine, just overloaded with 12-30)Given a Spec sheet on an 8820, I would guess that an l3 and an 8820 are close to equals the l still being just smaller since the M2 is just smaller than the 7720. Just like now they all have a certain capacity area that they shot for for a certain model.

 

[Nels]

Do you mean to tell me that a F3 could keep right up with a 6620 with a 6rn. How fast do you go with itIJ We run our 6620 T2 with 6rn at 3mph and could probably go faster if we felt the need. I don't know that much about the F2 or F3, but the 6620 is a nice little combine.

 

[John]

My experience was F_4-38 and 6600_4-38 then 6620_4-38 and only the 6620_4-38 could keep up with the F, the F2 and F3 have larger capacities than the F and the F was able to handle the 6-30 head. My M2 easily walked away from what JD said was it's equal the 6620 and chewed on the tails of the 7720's with a 6-30 head in 200+ bu corn

 

[SilverTurnedGreen]

I'm not sure about an F3 vs. 6620 comparison, but I KNOW my l3 and 7720T2 were very evenly matched! I'm working from memory here, but I believe the l3 was a 48" cylinder and the Deere was a 55" cylinder, but hey were "even steven" in every crop and most conditions!

 

[Curt]

I'd like to add that the farm next to me they use 2 JD 7720's and they only appeared to be moving slightly faster than our M2. Now I didn't get in there machines and check their speed but you can tell when a machine is creeping through a field and moving right along. This is also before we got the corn chaffer and put it in and everything was original equipment. Next year I'd like to go over there after making a few adjustments and see what they can do side by side. I'm only talking one to one here for all you JD people I know that my M2 can't out do 2 JD 7720's unless maybe I could get some help to add some accelerator rolls j_k Curt

 

[95man]

I'm gonna have to see it for myself to believe that an F2 can stay with a 6620. As for an M3 vs a 6620 - I could see that - how bout a T2 6620 vs. M3 - that is a comparison. 95man

 

[Farmer_Ed]

The F2 is a great machine. Will it keep up with a 6620IJ I don't know much about the 6620. I know it will put a 4400 to shame. I would tend to think that a 6620 would have more capacity though. I know the F2 can do just as clean of job if not better, no augers underneath the cylinder to smear_split_etc. the crops!!! I told my dad if he bought one of those stupid JD's where you sit next to the engine (I guess they finally learned their lesson, like the 2 cylinder johnny poppers),I was not going to drive it! lol Gleaner was the combine of that day if you drive around and compare all of them at that time, my dad and grandpa made the right decision. I think for the price and parts availability of today I think Axial Flow is hard to beat. If your a millionaire (obviously you can't be a full time farmer!) then go with whatever one suits your fancy! ;-) my $.02